US 11,656,719 B2
Touch sensing device and method of driving the same
Sun Young Park, Daejeon (KR); Hong Kyun Jung, Daejeon (KR); and Sung Chun Kim, Daejeon (KR)
Assigned to LX SEMICON CO., LTD., Daejeon (KR)
Filed by SILICON WORKS CO., LTD., Daejeon (KR)
Filed on Aug. 20, 2021, as Appl. No. 17/407,462.
Claims priority of application No. 10-2020-0113551 (KR), filed on Sep. 7, 2020.
Prior Publication US 2022/0075476 A1, Mar. 10, 2022
Int. Cl. G06F 3/041 (2006.01); G09G 3/36 (2006.01); G06F 3/044 (2006.01)
CPC G06F 3/0418 (2013.01) [G06F 3/04164 (2019.05); G06F 3/04166 (2019.05); G06F 3/044 (2013.01); G06F 3/0412 (2013.01); G09G 3/3611 (2013.01); G09G 2310/08 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A touch sensing device comprising:
a touch controller configured to operate in a write mode during a display period and operate in a read request mode or a read operation mode during a touch sensing period; and
a touch driver configured to receive touch sensing data from a touch sensor during the touch sensing period and transmit the touch sensing data to the touch controller through a first bus and a second bus,
wherein the first bus is used for clock transmission in the write mode and the read request mode and is used for data transmission in the read operation mode,
the second bus is used for data transmission in the write mode, the read request mode, and the read operation mode,
in the write mode during the display period, the touch controller is configured to transmit clock and touch drive setting data to the touch driver,
in the read request mode during the touch sensing period, the touch controller is configured to transmit clock and read request data to the touch driver, and
in the read operation mode during the touch sensing period, the touch driver is configured to transmit touch sensing data to the touch controller.